Suthers, D. D., Hundhausen, C. and Girardeau, L. (2003). An Exploratory Comparison of the Roles of Representations in Face to Face and Online Collaborative Learning. Proceedings of the 36th Hawai`i International Conference on the System Sciences (HICSS-36), January 6-9, 2003, Wakoloa, Hawai`i (CD-ROM), Institute of Electrical and Electronics Engineers, Inc. (IEEE).